CN202519997U - Numerical-control synchronous tensioning system of jack - Google Patents
Numerical-control synchronous tensioning system of jack Download PDFInfo
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- CN202519997U CN202519997U CN2012201403025U CN201220140302U CN202519997U CN 202519997 U CN202519997 U CN 202519997U CN 2012201403025 U CN2012201403025 U CN 2012201403025U CN 201220140302 U CN201220140302 U CN 201220140302U CN 202519997 U CN202519997 U CN 202519997U
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Abstract
The utility model discloses a numerical-control synchronous tensioning system of a jack. The numerical-control synchronous tensioning system comprises a control component and two tensioning components arranged in an opposing way, wherein the tensioning component comprises a tensioning device, an oil inlet pipe, an oil outlet pipe and an oil tank; the oil tank is provided with an oil pump; the control component comprises a controller and electromagnetic control valves; the controller is provided with an interface converter; and the electromagnetic control valves are arranged on the oil inlet pipe and the oil outlet pipe and electrically connected with the interface converter. The numerical-control synchronous tensioning system is compact in structure, low in cost, simple in operation, good in reliability and high in precision and degree of automation; one control component controls two tensioning components automatically and synchronously, and records the data value in operation in real time, therefore, not only the synchronism during the tensioning process, the load time duration during the tensioning process and the precision and accuracy of the data collected can be ensured, but also the data during the tensioning process can be recoded automatically, so that the tensioning process can be represented in future for facilitating the verification.
Description
Technical field
The utility model belongs to the building implements field, specifically, relates to a kind of jack numerical control synchronous tension system.
Background technology
Prestressed stretch-draw is exactly through jack tension presstressed reinforcing steel, gives bridge or member stress application in advance, makes bridge or member produce camber upwards, to improve the supporting capacity of bridge or member.Prestressed stretch-draw is divided into two kinds of pre-tensioning system and post stretching.Pre-tensioning system is meant strains earlier presstressed reinforcing steel on pedestal, through ground tackle that presstressed reinforcing steel is solid on pedestal, then concreting.When treating that concrete reaches prescribed strength, lay down ground tackle, loosen presstressed reinforcing steel, the strength of that part of presstressed reinforcing steel that combines with concrete just is delivered on the concrete.Post stretching is meant first concreting post tensioning, leaves the duct before the concreting in advance, treats that concrete reaches intensity, in the duct, imports presstressed reinforcing steel into, and stretch-draw anchor is preferably in and injects cement paste in the duct then.
In traditional form of construction work, prestressed stretch-draw is taked the mode of two ends symmetry simultaneous tension, adopts two control methods of control stretching force and elongation.In order to make Tension Control more accurate, generally adopt the two control methods of ess-strain, be main with Stress Control, strain is controlled to be auxilliary, requires simultaneously to carry out with the method that loads step by step, promptly exists requirement synchronous and pause.Wherein, all be through the manual type collection to the reading of oil meter, elongation, synchronism then realizes by whistling, do gesture or propagandaing directed to communicate through Walkie talkie.After stretch-draw finished, data record also was to lean on manual record.
Deficiency below above-mentioned traditional stretching mode exists:
At first be in operation; Because be that the two ends that two staff stand in stretch-draw are controlled two tensioning equipments respectively; Only through simply whistling or propagandaing directed to communicate; Start when be difficult to guaranteeing, just be difficult to guarantee synchronism, and synchronism plays crucial effects to the quality of stretch-draw quality equipment.In stretching process, need to adopt the mode that loads step by step, promptly in stretching process, requiring has pause and holds the lotus time, has taken operating personnel's great amount of time.And in a large amount of engineering practices is investigated, can learn; For the ignorance of perhaps starting from the stretch-draw quality in a hurry; A lot of staff almost are that as long as gathered after the data of this point, promptly starting drive begins the stretch-draw of next stroke at once to after certain point that pauses; Whole process is also imperfect, thereby has influence on the stretch-draw quality.In addition, also very inaccurate to the control of stretching force value.
Next is in the collection of data, and the mode of artificial stretch-draw is to read the oil pressure tabular value through naked eyes, because the vibrations of machine; The swing that the meeting of oil meter pointer is violent; Add the precision problem of oil meter, and the horizontal problem of workman's reading, all will have influence on the precision and the degree of accuracy of reading.On the elongation of measuring presstressed reinforcing steel, also be to adopt manual type at present, go to gather with steel ruler, can there be bigger error equally.
At last, whole stretching process cannot reproduce, and stretch-draw finishes, and after the sealing off and covering anchorage (wrapping the stretch-draw end with concrete), even the stretch-draw personnel have distorted the data that collect in the stretching process, also is difficult to verification.
In sum, above various reasons directly causes anchor lower prestress not meet designing requirement and instructions for use, has a strong impact on the application life of construction works such as bridge, increases the maintenance and the operation costs in construction work later stage.
Summary of the invention
The technical problem that the utility model will solve is to overcome above-mentioned defective, a kind of simple and compact for structure, with low cost, easy and simple to handle, good reliability is provided, precision is high, automaticity is high intelligent jack numerical control synchronous tension system.
For addressing the above problem, the technical scheme that the utility model adopted is:
Jack numerical control synchronous tension system comprises Control Component and two stretch-draw assemblies that are positioned opposite that link to each other with Control Component;
Said stretch-draw assembly comprises tensioning equipment, the oil inlet pipe that is communicated with tensioning equipment and flowline and the fuel tank that is communicated with oil inlet pipe and flowline, and fuel tank is provided with oil pump;
Said Control Component comprises controller, and controller is provided with interface convertor; Be arranged on the solenoid electric valve on oil inlet pipe and the flowline; Said solenoid electric valve is electrically connected with interface convertor.
Say further:
Said tensioning equipment is provided with oil pressure sensor; Said fuel tank is provided with oil pressure sensor; Said oil pressure sensor is electrically connected with interface convertor.
Said tensioning equipment is provided with displacement transducer, and displacement transducer is electrically connected with interface convertor.
Further say:
Said tensioning equipment is a jack.
Owing to adopted technique scheme; Compared with prior art; The utility model compact conformation, with low cost, easy and simple to handle, good reliability, precision is high, automaticity is high, and a Control Component is controlled two stretch-draw assemblies simultaneously automatically, and the data value during operation under the real time record; Not only can guarantee the synchronism of stretching process, accuracy of holding lotus time span and image data and the correctness in the stretching process; Can also automatically write down the data in the stretching process, can reproduce stretching process later on, convenient verification.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further simultaneously.
Description of drawings
Fig. 1 is that block diagram is installed by the system of a kind of embodiment of the utility model.
Among the figure: the 1-tensioning equipment; The 2-oil pressure sensor; The 3-displacement transducer; The 4-ground tackle; The 5-oil inlet pipe; The 6-flowline; The 7-solenoid electric valve; The 8-interface convertor; The 9-controller; The 10-fuel tank; The 11-oil pump.
The specific embodiment
Embodiment:
As shown in Figure 1, jack numerical control synchronous tension system comprises Control Component and two stretch-draw assemblies that are positioned opposite that link to each other with Control Component.
In the present embodiment, said stretch-draw assembly comprises tensioning equipment 1, the oil inlet pipe 5 that is communicated with tensioning equipment 1 and flowline 6 and the fuel tank 10 that is communicated with oil inlet pipe 5 and flowline 6, and fuel tank 10 is provided with oil pump 11.Generally speaking, all be to adopt jack as tensioning equipment, what controller adopted is computer.
Said Control Component comprises controller 9, and controller 9 is provided with interface convertor 8.Oil inlet pipe 5 is provided with solenoid electric valve 7 with flowline 6.Said solenoid electric valve 7 is electrically connected with interface convertor 8.
In the present embodiment, said tensioning equipment 1 is provided with oil pressure sensor 2, also is provided with oil pressure sensor 2 on the fuel tank 10.Said oil pressure sensor 2 is electrically connected with interface convertor 8.Said tensioning equipment 1 is provided with displacement transducer 3, and displacement transducer 3 is electrically connected with interface convertor 8.
Before the work, at first checkout facility connects situation, engaging means power supply then.Open the control software in the computer, correctly configure relevant parameter,, click and confirm that system will start working like steel strand root bundle, model etc.
Jack is provided with when being used for detecting the stretch-draw operation flexible end movement and sends displacement signal the displacement transducer of computer to, and is used for detecting oil pressure in the jack and oil pressure value is sent to the pressure sensor of Control Component.Fuel tank is equiped with the oil pressure sensor that is used to detect the fuel tank oil pressure and oil pressure value is sent to computer.In the system work process, computer can be according to the signal that transmits in each sensor, under the real time record during stretch-draw operation; The variation of stretch-draw displacement and the variation of oil pressure in real time, and, adjust parameters such as fuel tank place solenoid electric valve is regulated the stress of stretch-draw, the point that pauses in real time according to above-mentioned variation; Reach best stretch-draw effect; And whole data recording process is true, reliable, can preserve as the process data of the best, convenient verification from now on.
The utility model compact conformation, with low cost, easy and simple to handle, good reliability, precision is high, automaticity is high; A Control Component is controlled two stretch-draw assemblies simultaneously automatically; And the data value during operation under the real time record, not only can guarantee the synchronism of stretching process, accuracy of holding lotus time span and image data and the correctness in the stretching process, can also automatically write down the data in the stretching process; Can reproduce stretching process later on, convenient verification.
The above only is the preferred implementation of the utility model, and the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art in the some improvement and the retouching that do not break away under the utility model principle prerequisite, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (4)
1. jack numerical control synchronous tension system comprises Control Component and two stretch-draw assemblies that are positioned opposite that link to each other with Control Component;
Said stretch-draw assembly comprises tensioning equipment (1), the oil inlet pipe (5) that is communicated with tensioning equipment (1) and flowline (6) and the fuel tank (10) that is communicated with oil inlet pipe (5) and flowline (6), and fuel tank (10) is provided with oil pump (11);
Said Control Component comprises controller (9), and controller (9) is provided with interface convertor (8); Be arranged on the solenoid electric valve (7) on oil inlet pipe (5) and the flowline (6); Said solenoid electric valve (7) is electrically connected with interface convertor (8).
2. jack numerical control synchronous tension according to claim 1 system, it is characterized in that: said tensioning equipment (1) is provided with oil pressure sensor (2); Said fuel tank (10) is provided with oil pressure sensor (2); Said oil pressure sensor (2) is electrically connected with interface convertor (8).
3. jack numerical control synchronous tension according to claim 1 and 2 system, it is characterized in that: said tensioning equipment (1) is provided with displacement transducer (3), and displacement transducer (3) is electrically connected with interface convertor (8).
4. jack numerical control synchronous tension according to claim 3 system, it is characterized in that: said tensioning equipment (1) is a jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201403025U CN202519997U (en) | 2012-04-06 | 2012-04-06 | Numerical-control synchronous tensioning system of jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201403025U CN202519997U (en) | 2012-04-06 | 2012-04-06 | Numerical-control synchronous tensioning system of jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202519997U true CN202519997U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201403025U Expired - Lifetime CN202519997U (en) | 2012-04-06 | 2012-04-06 | Numerical-control synchronous tensioning system of jack |
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| Country | Link |
|---|---|
| CN (1) | CN202519997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088757A (en) * | 2013-02-06 | 2013-05-08 | 山西斯普瑞机械制造股份有限公司 | Box girder prestressed tension automatic control method and system |
-
2012
- 2012-04-06 CN CN2012201403025U patent/CN202519997U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088757A (en) * | 2013-02-06 | 2013-05-08 | 山西斯普瑞机械制造股份有限公司 | Box girder prestressed tension automatic control method and system |
| CN103088757B (en) * | 2013-02-06 | 2015-10-28 | 山西斯普瑞机械制造股份有限公司 | Box girder pre-stressed tension automatic control method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |